... and diameter range, especially for medium and large diameter pipes. Nominal Size DN15-DN800 Nominal Pressure 1.6Mpa-20.0Mpa ... Gate Valve, China, mill, manufacturer, supplier, factory, wholesale, cheapCast Iron Gate ValveHuachao can supply wedge gate valve electric actuated gate ... ASME B16.34, API 6D, GOST 5762Material: gray cast iron, GG 25, ductile iron, GG 40, GGG50Seat material: NBR, EPDM, Brass or ...